Date: Tue, 9 Jan 2001 14:38:20 -0800 (PST) From: Stefan Molnar <stefan@csudsu.com> To: Mikel King <mikel@ocsinternet.com> Cc: "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG> Subject: Re: more re: stupid NATD tricks... Message-ID: <Pine.BSF.4.31.0101091434270.18315-100000@digital.csudsu.com> In-Reply-To: <3A5B424F.E60DCD20@ocsinternet.com>
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The only thing I can think of then is the alias address is not on the
same subnet as the primary interface. I am running static nat on ipfw
today, but all my aliases are on the same subnet.
Since all the ipfw rules are correct, the natd.conf looks happy.
On Tue, 9 Jan 2001, Mikel King wrote:
> My apologies for not including the rc.conf...but I have;
>
> ifconfig_fxp0_alias0="inet 208.239.172.50 netmask 0xffffffff"
>
> ifconfig fxp0
>
> fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> inet 204.107.76.181 netmask 0xffffff00 broadcast 204.107.76.255
> inet6 fe80::203:47ff:fe12:3c51%fxp0 prefixlen 64 scopeid 0x1
> inet 208.239.172.50 netmask 0xffffffff broadcast 208.239.172.50
> ether 00:03:47:12:3c:51
> media: autoselect (100baseTX <full-duplex>) status: active
> supported media: autoselect 100baseTX <full-duplex> 100baseTX
> 10baseT/UTP <full-duplex> 10baseT/UTP
>
> Thanks, though it was a good try...
>
> I also forgot to mention I'm running 4.2r...
>
> cheers,
> mikel
>
> Stefan Molnar wrote:
>
> > Here is the one thing you have not done. Make an alias interface on the
> > external address. Your external interface needs to lissen and anwser
> > for all static nat translations.
> >
> > On Tue, 9 Jan 2001, Mikel King wrote:
> >
> > > Greetings all;
> > >
> > > Ok I'm running this question again, because I've already read and
> > > reread everything I can find on the subject. I am trying to get static
> > > NAT working. NATD is working normally, my inside machines can traceroute
> > > and surf and nslookup etc...I know there must be something stupid I've
> > > overlooked
> > >
> > > From the outside I've tried simply telneting to the ouside IP on
> > > port 80 from another outside device (...NOTE this works fine from the FW
> > > directly to the inside machine...so I can verify that the http requests
> > > are being answered) and I get the following:
> > >
> > > Trying 204.107.76.181...
> > > telnet: connect to address 204.107.76.181: Connection refused
> > > telnet: Unable to connect to remote host
> > >
> > > If I remove the redirect_port and put redirect_address 10.0.0.77
> > > 208.239.172.50 instead then I get the following;
> > >
> > > telnet 208.239.172.50 80
> > > Trying 208.239.172.50...
> > > telnet: connect to address 208.239.172.50: Operation timed out
> > > telnet: Unable to connect to remote host
> > >
> > > Remember 10.0.0.77 surfs out through this box fine, and other
> > > workstations on the backnet and surf to 10.0.0.77 without a problem.
> > >
> > > Thank in advance for any help.
> > >
> > > Cheers,
> > > Mikel
> > >
> > > ***************** CONFIGURATION FILES etc...
> > >
> > > cli:
> > > /sbin/natd -f /etc/rc.natd
> > >
> > > rc.natd:
> > > interface fxp0
> > > use_sockets
> > > same_ports
> > > unregistered_only #I've tried it with and
> > > with out this one...
> > > redirect_port tcp 10.0.0.77:80 80 #This should redirect any HTTP
> > > request from the outside to the in...
> > > redirect_port tcp 10.0.0.2:23 23
> > > log
> > >
> > > #other rules that i've tried...
> > > #redirect_port tcp 10.0.0.77:80 208.239.172.50:80
> > > #redirect_address 10.0.0.77 208.239.172.50
> > >
> > > rc.firewall:
> > > ############
> > > # Setup system for firewall service.
> > > # $FreeBSD: src/etc/rc.firewall,v 1.30 2000/02/06 19:24:37 paul Exp $
> > >
> > > # Suck in the configuration variables.
> > > if [ -r /etc/defaults/rc.conf ]; then
> > > . /etc/defaults/rc.conf
> > > elif [ -r /etc/rc.conf ]; then
> > > . /etc/rc.conf
> > > fi
> > >
> > > fwcmd="/sbin/ipfw"
> > > nif="fxp0"
> > > iif="rl0"
> > > ${fwcmd} -f flush
> > > ${fwcmd} add divert natd all from any to any via ${nif}
> > > ${fwcmd} add pass ip from any to any
> > > ${fwcmd} add deny log all from any to any
> > >
> > > ipfw show:
> > > 00100 15537 1416950 divert 8668 ip from any to any via fxp0
> > > 00200 16707 1550670 allow ip from any to any
> > > 00300 0 0 deny log logamount 100 ip from any to any
> > > 65535 0 0 deny ip from any to any
> > >
> > > kernel conf:
> > > options IPFIREWALL
> > > options IPFIREWALL_VERBOSE
> > > options IPFIREWALL_VERBOSE_LIMIT=100
> > > options IPDIVERT
> > > options ICMP_BANDLIM
> > >
> > > ps ax (excert):
> > > 140 ?? Ss 0:00.25 syslogd -s
> > > 161 ?? Ss 0:00.28 cron
> > > 164 ?? Is 0:00.54 /usr/sbin/sshd
> > > 166 ?? Ss 0:00.13 /usr/sbin/usbd
> > > 204 ?? Is 0:00.01 /usr/local/sbin/xinetd -pid
> > > 237 ?? Ss 0:01.26 /sbin/natd -f /etc/rc.natd
> > >
> > > netstat -rn:
> > > Routing tables
> > > Internet:
> > > Destination Gateway Flags Refs Use Netif
> > > Expire
> > > default 204.107.76.1 UGSc 0 0 fxp0
> > > 10/24 link#2 UC 0 0 rl0 =>
> > >
> > > 10.0.0.77 link#2 UHLW 1 8 rl0 =>
> > >
> > > 127.0.0.1 127.0.0.1 UH 0 4 lo0
> > > 204.107.76 link#1 UC 0 0 fxp0 =>
> > >
> > > 204.107.76.1 0:e0:1e:e9:ad:1 UHLW 1 0 fxp0
> > > 858
> > > 204.107.76.19 0:e0:29:84:d0:4b UHLW 2 1864 fxp0
> > > 945
> > > 204.107.76.111 0:10:4b:14:a7:63 UHLW 0 60 fxp0
> > > 859
> > > 204.107.76.181 0:3:47:12:3c:51 UHLW 0 8 lo0
> > > 208.239.172.50 0:3:47:12:3c:51 UHLS 0 0 lo0 =>
> > >
> > > 208.239.172.50/32 link#1 UC 0 0 fxp0 =>
> > >
> > > Internet6:
> > > Destination Gateway
> > > Flags Neti$::1
> > > ::1 UH lo0
> > > fe80::%fxp0/64 link#1
> > > UC fxp0
> > > fe80::%rl0/64 link#2
> > > UC rl0
> > > fe80::%lo0/64 fe80::1%lo0
> > > Uc lo0
> > > ff01::/32 ::1
> > > U lo0
> > > ff02::%fxp0/32 link#1
> > > UC fxp0
> > > ff02::%rl0/32 link#2
> > > UC rl0
> > > ff02::%lo0/32 fe80::1%lo0
> > > UC lo0
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
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> > > with "unsubscribe freebsd-questions" in the body of the message
> > >
> > >
>
>
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